MacBook Air is powered by the all-new fourth-generation Intel Core i5 processor. This ultra-efficient architecture was designed to use less power with up to 9 hours battery life (wireless web) and still deliver high performance. Which means not only can you do whatever you want – you can keep doing it for longer than before. In addition, the new Intel HD Graphics 5000 offers up to 40 percent faster graphics – performance you’ll especially notice with games and other graphics-intensive tasks.